#include <iostream>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <arpa/inet.h>

void Usage()
{
    std::cout << "Please use ./client + client + serverport!" << std::endl;
    exit(1);
}
#define CONV(addr) (struct sockaddr*)(addr)